Actually figured this out myself in case anyone's interested. It's not very intuitive (at least not to me).
Go to Settings > Call Settings > Voicemail
You VM number will popup, click in the field to bring up the keyboard. ON the keyboard there is a letter "P". After your number append the "P" and your vm password number "XXXX". That's it. It works great for me.
To be more explicit: Go to Settings > Call Settings > Voicemail
Your current voicemail number will be displayed in the input box,
Use the keypad to append a 'p' and your PIN, e.g.
(replace that 000 with your PIN).
My phone won't allow me to edit my voicemail number or any settings at all that have to do with voicemail so i can't add pauses etc and everytime i try calling voicemail it asks for my password but it doesn't work so im clearly missing something. ive never used voicemail before so i have no idea how it works to begin with